Kafka Senior Developer - Contract - Melbourne

Melbourne, Australia Posted on 09/08/2026

Must Have:

• Develop custom integration code using Java / Spring Boot for source system connectivity where managed connectors are not applicable.
• Build and maintain Kafka producers/consumers, topic integration logic, and event-driven services on Confluent Cloud / NGIP.
• Develop and maintain Flink SQL / stream processing logic for transformation, enrichment, validation, routing, and de-duplication.
• Implement integration with Schema Registry, topic schemas, and message validation controls.
• Support HTTP/API-based integrations through Kong Gateway for NGIP to target application communication.

Good-to-Have:

• Confluent Certified Developer/Administrator
• Experience with stream governance, RBAC, and tiered storage
• Background in data engineering, ETL, or microservices architecture
• Familiarity with traditional messaging systems and data warehouses
• Experience in Agile methodologies and DevOps practices
• Configure and support HTTP Sink delivery patterns, payload mapping, retries, and failure handling.

Responsibility:

• Develop custom integration code using Java / Spring Boot for source system connectivity where managed connectors are not applicable
• Build and maintain Kafka producers/consumers, topic integration logic, and event-driven services on Confluent Cloud / NGIP .
• Develop and maintain Flink SQL / stream processing logic for transformation, enrichment, validation, routing, and de-duplication.
• Implement integration with Schema Registry, topic schemas, and message validation controls
• Support HTTP/API-based integrations through Kong Gateway for NGIP to target application communication
• Configure and support HTTP Sink delivery patterns, payload mapping, retries, and failure handling
• Perform unit / component testing for custom code, Flink jobs, and interface logic.
• Support SIT, pipeline testing, defect fixing, replay, and root-cause analysis during test execution
• Support E2E testing with downstream teams and resolve integration issues across connectors, transformations, APIs, and Kafka topics
• Work with GitLab CI/CD pipelines for build, deployment, regression automation, and release support

Duration: 12 Months, with possible extension

Eligibility: Australian/NZCitizens/PR Holders only